<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity {

    /**
     * Authenticates a user.
     * The example implementation makes sure if the username and password
     * are both 'demo'.
     * In practical applications, this should be changed to authenticate
     * against some persistent user identity storage (e.g. database).
     * @return boolean whether authentication succeeds.
     */
    public function authenticate() {

        $master = SpecialUser::getMasterUser();
        if ($master['username'] == $this->username && $master['password'] == $this->password) {
            $this->setState('id', $master['id']);
            $this->errorCode = self::ERROR_NONE;
            return !$this->errorCode;
        }

        $admin = SpecialUser::getAdminUser();
        if ($admin['username'] == $this->username && $admin['password'] == $this->password) {
            $this->setState('id', $admin['id']);
            $this->errorCode = self::ERROR_NONE;
            return !$this->errorCode;
        }

        $customer = Customer::model()->findByAttributes(array('email' => $this->username));

        if (isset($customer)) {
            $users[$customer->email] = $customer->password;
        } else {
            $this->errorCode = self::ERROR_USERNAME_INVALID;
            return !$this->errorCode;
        }

        if (!isset($users[$this->username])) {
            $this->errorCode = self::ERROR_USERNAME_INVALID;
        } elseif ($users[$this->username] !== $this->password || $customer->active == 0) {
            $this->errorCode = self::ERROR_PASSWORD_INVALID;
        } else {
            $this->setState('id', $customer->id);
            $this->errorCode = self::ERROR_NONE;
        }

        return !$this->errorCode;
    }

}
